CN105100733A - Video playing method and system of mosaic display device - Google Patents
Video playing method and system of mosaic display device Download PDFInfo
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- CN105100733A CN105100733A CN201510543075.9A CN201510543075A CN105100733A CN 105100733 A CN105100733 A CN 105100733A CN 201510543075 A CN201510543075 A CN 201510543075A CN 105100733 A CN105100733 A CN 105100733A
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Abstract
The invention relates to a video playing method and system of a mosaic display device. The video playing method of the mosaic display device comprises: obtaining video sources corresponding to a scene according to the attributes of the scene, and decoding each video source to obtain a plurality of channels of video information, wherein the video sources are videos picked up using a plurality of cameras in the scene; performing time synchronization on the plurality of channels of video information according to shooting time to combine into a channel of complete scene video, and associating the scene video with the shooting time; and obtaining a time period to be watched, finding out the time period from the shooting time and intercepting a corresponding video fragment from the scene video for playing. The video playing method of the mosaic display device is capable of obtaining events happening in the scene within the corresponding time periods from different angles, improving the playing effect of the scene video and thus improving the effect of monitoring and recording the relevant scenes by use of the mosaic display device.
Description
Technical field
The present invention relates to video display technology field, particularly relate to a kind of video broadcasting method and system of splicing display device.
Background technology
Along with the popularization of control room application, Based Intelligent Control is more and more important at safety-security area; Information is concentrated in display application more and more higher to the high request of display terminal, and the set application of the multiple advanced technology of its General Requirements, has unique image display effect, and final purpose realizes high definition, the display of large-area centralized information.Be conventionally used to the intelligent monitoring scheme of safety-security area, generally take at scene setting camera, shown by the recording of video of certain display to shooting again, to reach the object monitored corresponding scene or record, aforesaid way is generally difficult to the video capture information obtaining corresponding scene from all angles in the playback of associated video, affects the result of broadcast of above-mentioned video.
Summary of the invention
Based on this, when being necessary to affect video playback for traditional approach, the technical problem of result of broadcast, provides a kind of video broadcasting method and system of splicing display device.
A video broadcasting method for splicing display device, comprises the steps:
Obtain video source corresponding to this scene according to scene properties, and respectively each video source is decoded, obtain multi-channel video information; Wherein, described video source is by video that multiple camera is taken in described scene;
According to shooting time, time synchronized is carried out to described multi-channel video information, and synthesize the complete scene video in a road, and described scene video is associated with described shooting time;
Obtain the time period of required viewing, from shooting time, find out the described time period, and from scene video, intercept corresponding video segment play.
An audio/video player system for splicing display device, comprising:
Decoder module, for obtaining video source corresponding to this scene according to scene properties, and decodes to each video source respectively, obtains multi-channel video information; Wherein, described video source is by video that multiple camera is taken in described scene;
Decoder module, for carrying out time synchronized according to shooting time to described multi-channel video information, and synthesizes the complete scene video in a road, and is associated with described shooting time by described scene video;
Playing module, for obtaining the time period of required viewing, finds out the described time period from shooting time, and from scene video, intercepts corresponding video segment play.
The video broadcasting method of above-mentioned splicing display device and system, video source corresponding to this scene is obtained according to scene properties, to decode described video source, to obtain multi-channel video information, carry out time synchronized according to multi-channel video information again, synthesize the scene video that a road is complete, make the video of multiple camera from different perspectives captured by this scene, clear, comprehensively can be presented in a scene video, ensure the integrality that above-mentioned scene video comprises and accuracy; The time period of required viewing is set according to user's request, the described time period is found out from shooting time, and from scene video, intercept corresponding video segment play, the content meeting user's request in above-mentioned scene video can be play by splicing display device, make in the replayed section of above-mentioned scene video, this scene institute occurrence in the corresponding time period can be obtained from different angles, improve the result of broadcast of above-mentioned scene video, and then improve the effect by splicing display device associated scenario monitored or record.
Accompanying drawing explanation
Fig. 1 is the video broadcasting method flow chart of the splicing display device of an embodiment;
Fig. 2 is the audio/video player system structural representation of the splicing display device of an embodiment.
Embodiment
Below in conjunction with accompanying drawing, the video broadcasting method of splicing display device of the present invention and the embodiment of system are described in detail.
With reference to figure 1, Figure 1 shows that the video broadcasting method flow chart of the splicing display device of an embodiment, comprise the steps:
S10, obtains video source corresponding to this scene according to scene properties, and decodes to each video source respectively, obtain multi-channel video information; Wherein, described video source is by video that multiple camera is taken in described scene;
In above-mentioned steps S10, if desired to certain scene, such as deposit the storeroom etc. of important instrument, monitor; Or videograph is carried out to some scenes, such as various meeting; Can install multiple camera in corresponding scene, each camera above-mentioned can be arranged on each corner of corresponding scene, with respectively from different angles, knows the affairs recording this scene and occur.
Owing to having installed multiple camera in each scene all from different perspectives, each camera can independently have been taken, and obtains its corresponding video source, therefore a corresponding multiple video source of scene; Multiple video source corresponding to this scene can be obtained according to scene properties; The multiple video source corresponding to this scene can be with multi-channel video information after decoding, above-mentioned multi-channel video information can from the corresponding scene of all angles record content of shooting.Above-mentioned scene properties can comprise the positional information or scene numbering etc. of scene, above-mentioned scene properties and the scene one_to_one corresponding carrying out monitoring or recording, a scene properties representative, and only represents a scene of carrying out taking.
S20, carries out time synchronized according to shooting time to described multi-channel video information, and synthesizes the complete scene video in a road, and is associated with described shooting time by described scene video;
In above-mentioned steps S20, scene corresponding multiple video source, i.e. a corresponding multi-channel video information; The shooting time of above-mentioned multi-channel video information is consistent, and that is, the initial time of shooting, finish time and above-mentioned initial time, the content captured by each moment between finish time are corresponding; Time synchronized can be carried out to the multi-channel video information of Same Scene, to synthesize the complete scene video in a road according to above-mentioned shooting time; Above-mentioned complete scene video can be comprised from the content captured by these scene all angles.Above-mentioned scene video carries out the video information of taking for corresponding scene in shooting time section, it can be associated with shooting time, namely record the moment that each content in above-mentioned scene video carries out taking, so that the follow-up partial content according to extracting correlation time in above-mentioned scene video.
S30, obtains the time period of required viewing, finds out the described time period from shooting time, and from scene video, intercepts corresponding video segment play.
In above-mentioned steps S30, a corresponding scene video, user may only need a viewing part wherein, without the need to from the beginning seeing tail, at this moment the viewing time of corresponding scene video just can be inputted to splicing display device, the i.e. time period of above-mentioned required viewing, splicing display device is made to obtain the time period of above-mentioned required viewing, the described time period is found out again from shooting time, and from scene video, intercept corresponding video segment play, to improve user to obtain associated video content efficiency by splicing display device; The time period of above-mentioned required viewing needs to set according to shooting time, and it can be a part for above-mentioned shooting time, also can be whole shooting time, and that is, the above-mentioned time period is the subset of corresponding shooting time section.The viewing of scene video in corresponding viewing time section is carried out, wall display on the signal that the plug-in unit that can call SDK (SoftwareDevelopmentKit, SDK) by increase by realizes native system by splicing display device; To obtain the channel information of the configuration of this system as spelled this class splicing display device of wall by SDK, the signal of transcoding and playback being windowed, and can control accordingly playback window; To ensure the effect being play corresponding scene video by splicing display device.
The video broadcasting method of the splicing display device that the present embodiment provides, video source corresponding to this scene is obtained according to scene properties, to decode described video source, to obtain multi-channel video information, carry out time synchronized according to multi-channel video information again, synthesize the scene video that a road is complete, make the video of multiple camera from different perspectives captured by this scene, clear, comprehensively can be presented in a scene video, ensure the integrality that above-mentioned scene video comprises and accuracy; The time period of required viewing is set according to user's request, the described time period is found out from shooting time, and from scene video, intercept corresponding video segment play, the content meeting user's request in above-mentioned scene video can be play by splicing display device, make in the replayed section of above-mentioned scene video, this scene institute occurrence in the corresponding time period can be obtained from different angles, improve the result of broadcast of above-mentioned scene video, and then improve the effect by splicing display device associated scenario monitored or record.
In one embodiment, each video source is being decoded, can also comprise after obtaining multi-channel video information:
Judge that whether the form of each road video information is the video format of setting;
If not, described each road video information is converted to the video format of described setting.
The video format of above-mentioned setting can comprise the various video formats that above-mentioned splicing display device can be play, and it can set by the video format compatible according to splicing display device.Because video format is varied, if the form of video information is not the video format of setting, illustrate that this video information cannot be play in above-mentioned splicing display device, corresponding video information is needed to carry out format conversion, it is made to play smoothly, to ensure that above-mentioned scene video carries out the quality of playback.
As an embodiment, generally needing to carry out transcoding (or also carrying out transcoding to normal video according to the configuration requirement of splicing display device) to non-standard video (non-H264 or MPEG-4), can be generally standard H264 video after transcoding; Can obtain audio frequency and video and associated event data, the requirement according to splicing display device configuration carries out transcoding to Audio and Video.The corresponding SDK of video is decoded as raw image data, then gives transcoding card and be encoded to H.264 video; The corresponding SDK of audio frequency can also be decoded as original audio data, recycling ffmpeg recompile is audio frequency.
In one embodiment, above-mentionedly obtain video source corresponding to this scene according to scene properties, and can also comprise before the step that described video source is decoded:
Be mounted on the camera in each scene;
Obtain the attribute of described camera, load plug-in unit corresponding to this camera according to described attribute, and control corresponding camera according to described plug-in unit and carry out video capture.
In the present embodiment, the first-class hardware of shooting can be accessed and carry out management and control to respective paths after access the protocol encapsulation plug-in unit corresponding according to concrete splicing display device.Generally speaking, for each class signal source (camera for shooting), all correspondingly there is a plug-in unit processing corresponding information, above-mentioned plug-in unit obtains video, audio frequency, event data by the SDK of signal source equipment manufacturer, if the off-gauge words of audio frequency and video, audio frequency and video are decoded, converts the video of standard to, carry out Video processing.The attribute of above-mentioned camera and each camera one_to_one corresponding, a camera has and only has an attribute; Plug-in unit corresponding to this camera can be loaded according to described attribute, above-mentioned plug-in unit can comprise dll (application program expansion) plug-in unit, after carrying out the loading of relevant plug-in unit, video capture can be carried out according to above-mentioned plug-in unit and the corresponding corresponding camera of path clustering.
As an embodiment, the attribute of the described camera of above-mentioned acquisition, loads plug-in unit corresponding to this camera according to described attribute, and controls can also comprise after corresponding camera carries out the step of video capture according to described plug-in unit:
Obtain the video of each camera shooting, obtain video source;
Local cache district is set, described video source is saved to described local cache district.
In above-described embodiment, local cache district is set in splicing display device, and above-mentioned video source is kept at above-mentioned local cache district, and without the need to taking the internal memory of splicing display device; When needs obtain video source data, just directly can carry out the reading of related data in local cache district, on the basis ensureing above-mentioned data reading performance using redundancy, be unlikely to the speed of service having influence on splicing display device.
As an embodiment, above-mentioned local cache district will be set, can also comprise after described video source being saved to the step in described local cache district:
Whether the total amount detecting the video source that described local cache district preserves exceedes preset value;
If so, then obtain the shooting time of each video source, and video source the most forward for shooting time is sent to server stores.
In the present embodiment, above-mentioned preset value can memory capacity arrange according to local cache district, whether the total amount of the video source that local cache district preserves exceedes preset value, illustrate that the space in above-mentioned local cache district is fully utilized, the storage carrying out video source again may the normal operation of influential system, now, the video source forward to shooting time can transfer between other memory blocks and preserve, such as video source the most forward for shooting time can be sent to server to store, corresponding acquisition etc. is carried out again when needed from server, local cache district is made to have enough spaces to carry out the buffer memory of video source, for the reading of splicing display device and carrying out smoothly of follow-up relevant broadcasting.
As an embodiment, for the video source being kept at local cache district, also can detect from the aspect such as continuity or semaphore above-mentioned video source, the situations such as the existence of above-mentioned video source is lost if find, extremely block, semaphore is abnormal, can report to the police, to notify that relevant staff processes accordingly for concrete situation.
In one embodiment, at the multiple camera of certain meeting in-site installation, by each camera, conference content can be taken, after obtaining multiple video source, above-mentioned multiple video source is sent to the local cache district of splicing display device; Splice displaying system obtains the on-the-spot corresponding multiple video source of this meeting according to the on-the-spot corresponding scene properties of above-mentioned meeting from local cache district, obtains multi-channel video information after decoding respectively to each video source; According to the shooting time at meeting scene, time synchronized is carried out to described multi-channel video information again, and synthesize the complete scene video in a road, above-mentioned scene video is associated with shooting time, make the content of scene video and shooting time form strict corresponding relation, make subsequent user can obtain any one section of conference content conference process from above-mentioned scene video; The such as the time of meeting, namely 10:00 to 12:00 is shot for, user needs the conference content watching 11:00 to 11:30 afterwards, the time period of required viewing can be input as 11:00 to 11:30, now, splicing display device just can play the content of this time period of 11:00 to 11:30 from the on-the-spot corresponding scene video of above-mentioned meeting.
With reference to figure 2, Figure 2 shows that the audio/video player system structural representation of the splicing display device of an embodiment, comprising:
Decoder module 10, for obtaining video source corresponding to this scene according to scene properties, and decodes to each video source respectively, obtains multi-channel video information; Wherein, described video source is by video that multiple camera is taken in described scene;
Decoder module 20, for carrying out time synchronized according to shooting time to described multi-channel video information, and synthesizes the complete scene video in a road, and is associated with described shooting time by described scene video;
Playing module 30, for obtaining the time period of required viewing, finds out the described time period from shooting time, and from scene video, intercepts corresponding video segment play.
In one embodiment, can also comprise after above-mentioned decoder module:
Judge module, for judging whether the form of each road video information is the video format set;
Modular converter, for if not, is converted to the video format of described setting by described each road video information.
In one embodiment, can also comprise before above-mentioned decoder module:
Link block, for being mounted on the camera in each scene;
Taking module, for obtaining the attribute of described camera, loads plug-in unit corresponding to this camera according to described attribute, and controls corresponding camera according to described plug-in unit and carry out video capture.
As an embodiment, can also comprise after above-mentioned taking module:
Acquisition module, for obtaining the video of each camera shooting, obtains video source;
Module being set, for arranging local cache district, described video source being saved to described local cache district.
As an embodiment, above-mentioned module is set after can also comprise:
Whether acquisition module, exceed preset value for the total amount detecting the video source that described local cache district preserves;
Memory module, for if so, then obtaining the shooting time of each video source, and is sent to server by video source the most forward for shooting time and stores.
The audio/video player system of splicing display device provided by the invention and the video broadcasting method one_to_one corresponding of splicing display device provided by the invention, the technical characteristic of setting forth in the embodiment of the video broadcasting method of described splicing display device and beneficial effect thereof are all applicable to, in the embodiment of the audio/video player system of splicing display device, hereby state.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this specification is recorded.
The above embodiment only have expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be construed as limiting the scope of the patent.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a video broadcasting method for splicing display device, is characterized in that, comprises the steps:
Obtain video source corresponding to this scene according to scene properties, and respectively each video source is decoded, obtain multi-channel video information; Wherein, described video source is by video that multiple camera is taken in described scene;
According to shooting time, time synchronized is carried out to described multi-channel video information, and synthesize the complete scene video in a road, and described scene video is associated with described shooting time;
Obtain the time period of required viewing, from shooting time, find out the described time period, and from scene video, intercept corresponding video segment play.
2. the video broadcasting method of splicing display device according to claim 1, is characterized in that, is decoding, also comprise after obtaining multi-channel video information each video source:
Judge that whether the form of each road video information is the video format of setting;
If not, described each road video information is converted to the video format of described setting.
3. the video broadcasting method of splicing display device according to claim 1, is characterized in that, describedly obtains video source corresponding to this scene according to scene properties, and also comprises before the step of decoding to described video source:
Be mounted on the camera in each scene;
Obtain the attribute of described camera, load plug-in unit corresponding to this camera according to described attribute, and control corresponding camera according to described plug-in unit and carry out video capture.
4. the video broadcasting method of splicing display device according to claim 3, it is characterized in that, the attribute of the described camera of described acquisition, loads plug-in unit corresponding to this camera according to described attribute, and controls also to comprise after corresponding camera carries out the step of video capture according to described plug-in unit:
Obtain the video of each camera shooting, obtain video source;
Local cache district is set, described video source is saved to described local cache district.
5. the video broadcasting method of splicing display device according to claim 4, is characterized in that, describedly will arrange local cache district, also comprises after described video source being saved to the step in described local cache district:
Whether the total amount detecting the video source that described local cache district preserves exceedes preset value;
If so, then obtain the shooting time of each video source, and video source the most forward for shooting time is sent to server stores.
6. an audio/video player system for splicing display device, is characterized in that, comprising:
Decoder module, for obtaining video source corresponding to this scene according to scene properties, and decodes to each video source respectively, obtains multi-channel video information; Wherein, described video source is by video that multiple camera is taken in described scene;
Decoder module, for carrying out time synchronized according to shooting time to described multi-channel video information, and synthesizes the complete scene video in a road, and is associated with described shooting time by described scene video;
Playing module, for obtaining the time period of required viewing, finds out the described time period from shooting time, and from scene video, intercepts corresponding video segment play.
7. the audio/video player system of splicing display device according to claim 6, is characterized in that, also comprises after described decoder module:
Judge module, for judging whether the form of each road video information is the video format set;
Modular converter, for if not, is converted to the video format of described setting by described each road video information.
8. the audio/video player system of splicing display device according to claim 6, is characterized in that, also comprises before described decoder module:
Link block, for being mounted on the camera in each scene;
Taking module, for obtaining the attribute of described camera, loads plug-in unit corresponding to this camera according to described attribute, and controls corresponding camera according to described plug-in unit and carry out video capture.
9. the audio/video player system of splicing display device according to claim 8, is characterized in that, also comprises after described taking module:
Acquisition module, for obtaining the video of each camera shooting, obtains video source;
Module being set, for arranging local cache district, described video source being saved to described local cache district.
10. the audio/video player system of splicing display device according to claim 9, is characterized in that, described module is set after also comprise:
Whether acquisition module, exceed preset value for the total amount detecting the video source that described local cache district preserves;
Memory module, for if so, then obtaining the shooting time of each video source, and is sent to server by video source the most forward for shooting time and stores.
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| CN108769788A (en) * | 2018-05-30 | 2018-11-06 | 根尖体育科技（北京）有限公司 | The video clip intercept method that different angle images in a kind of Same Scene |
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| CN111586315A (en) * | 2019-02-19 | 2020-08-25 | 聪泰科技开发股份有限公司 | Collecting and marking recording method |
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| CN113055612B (en) * | 2019-12-27 | 2022-11-25 | 浙江宇视科技有限公司 | Video playing method, device, electronic equipment, system and medium |
| CN111711780A (en) * | 2020-04-22 | 2020-09-25 | 天津体育学院 | Image playback system and method |
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